WAUSAU SUPPLY COMPANY, LAKEVILLE, MN WAUSAU SUPPLY COMPANY includes the construction of the initial 147,000 sq. ft. office/ warehouse facility, with several expansions increasing the building size to 274,800 sq. ft. located in Lakeville, Minnesota. Building construction consists of a poured concrete slab on grade, pre-engineered metal panel wall and roofing system around the warehouse and CMU wall construction around the …